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Question
The weight of a product is measured in pounds. A sample of 50 units is taken from a recent production. The sample yielded 
= 75 lb, and we know that 
2 = 100 lb. Calculate a 95 percent confidence interval for 
.
A. [71.25, 78.75]
B. [72.23, 77.77]
C. [47.28, 102.72]
D. [72.67, 77.33]
Answer
This answer is hidden. It contains 2 characters.
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